Quickly add genre component

dashboard/src/app/album/album.component.html

@@ -93,6 +93,7 @@
           <th>Album</th>
           <th>Album Artist</th>
           <th>Play Count</th>
+          <th>Genre</th>
       </tr>
   </thead>
   <tbody>
@@ -103,6 +104,7 @@
           <td [title]="song.Album"><a [routerLink]="['/album', song.Album]">{{song.Album}}</a></td>
           <td [title]="song.Album">{{song['Album Artist']}}</td>
           <td [title]="song['Play Count']">{{song['Play Count']}}</td>
+          <td><a [routerLink]="['/genre', song.Genre]">{{song.Genre}}</a></td>
       </tr>
   </tbody>
   </table>

dashboard/src/app/app-routing.module.ts

@@ -4,12 +4,14 @@ import { RouterModule, Routes } from '@angular/router';
 import { DashboardComponent } from './dashboard.component';
 import { AlbumComponent } from './album/album.component';
 import { ArtistComponent } from './artist/artist.component';
+import { GenreComponent } from './genre/genre.component';
 
 const routes: Routes = [
   { path: '', redirectTo: '/dashboard', pathMatch: 'full' },
   { path: 'dashboard',  component: DashboardComponent },
   { path: 'album/:name',      component: AlbumComponent },
-  { path: 'artist/:name',      component: ArtistComponent }
+  { path: 'artist/:name',      component: ArtistComponent },
+  { path: 'genre/:name',      component: GenreComponent }
 ];
 
 @NgModule({

dashboard/src/app/app.module.ts

@@ -6,6 +6,7 @@ import { AppComponent } from './app.component';
 import { DashboardComponent } from './dashboard.component';
 import { AlbumComponent } from './album/album.component';
 import { ArtistComponent } from './artist/artist.component';
+import { GenreComponent } from './genre/genre.component';
 
 import { ElsService } from './els.service';
 
@@ -25,6 +26,7 @@ import { SortByPipe } from './sort-by.pipe';
     DashboardComponent,
     AlbumComponent,
     ArtistComponent,
+    GenreComponent,
     ConvertMsPipe,
     SortByPipe
   ],

dashboard/src/app/artist/artist.component.html

@@ -95,6 +95,7 @@
           <th>Artist</th>
           <th>Album Artist</th>
           <th>Play Count</th>
+          <th>Genre</th>
       </tr>
   </thead>
   <tbody>
@@ -106,6 +107,7 @@
           <td><a [routerLink]="['/artist', song.Artist]">{{song.Artist}}</a></td>
           <td>{{song['Album Artist'] ? song['Album Artist'] : "-" }}</td>
           <td>{{song['Play Count']}}</td>
+          <td><a [routerLink]="['/genre', song.Genre]">{{song.Genre}}</a></td>
       </tr>
   </tbody>
   </table>

dashboard/src/app/dashboard.component.html

@@ -127,7 +127,7 @@
     </thead>
     <tbody>
         <tr *ngFor="let genre of topGenres">
-            <td>{{genre.key}}</td>
+            <td><a [routerLink]="['/genre', genre.key]">{{genre.key}}</a></td>
             <td>{{genre.doc_count}}</td>
         </tr>
     </tbody>
@@ -144,10 +144,10 @@
     </thead>
     <tbody>
         <tr *ngFor="let genre of bottomGenres">
-            <td>{{genre.key}}</td>
+            <td><a [routerLink]="['/genre', genre.key]">{{genre.key}}</a></td>
             <td>{{genre.doc_count}}</td>
         </tr>
     </tbody>
     </table>
 </div>
-</div>
+</div>

dashboard/src/app/els.service.ts

@@ -156,6 +156,30 @@ export class ElsService {
       });
   }
 
+  getGenreSongs(genreName: string, from: number = 0): Observable<Song[]> {
+    console.info('getGenreSongs- Genre name: ' + genreName + ' - from: ' + from);
+    // TODO Code repetition => to refactor
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                'match_phrase': { 'Genre': genreName }
+              },
+              'size': ElsService.DEFAULT_SIZE,
+              'from': from
+            }), {headers: this.headers})
+      .map(res => {
+        return res.json().hits.hits;
+      })
+      .map((hits: Array<any>) => {
+        const result: Array<Song> = [];
+        hits.forEach((hit) => {
+          result.push(hit._source);
+        });
+        return result;
+      });
+  }
+
   getArtistSongs(artistName: string, from: number = 0): Observable<Song[]> {
     console.info('getArtistSongs- Artist name: ' + artistName + ' - from: ' + from);
     return this.http

dashboard/src/app/genre/genre.component.html

@@ -0,0 +1,28 @@
+<div class="container">
+  <h1>{{genreName}}</h1>
+
+  <table class="table table-striped">
+    <thead>
+      <tr>
+        <th></th>
+        <th>Name</th>
+        <th>Artist</th>
+        <th>Album</th>
+        <th>Album Artist</th>
+        <th>Play Count</th>
+        <th>Genre</th>
+      </tr>
+    </thead>
+    <tbody>
+      <tr *ngFor="let song of songs | sortBy : 'Track Number'">
+        <td>{{song['Track Number'] ? (("0" + song['Track Number']).slice(-2)) : "--"}}</td>
+        <td>{{song.Name}}</td>
+        <td><a [routerLink]="['/artist', song.Artist]">{{song.Artist}}</a></td>
+        <td><a [routerLink]="['/album', song.Album]">{{song.Album}}</a></td>
+        <td>{{song['Album Artist']}}</td>
+        <td>{{song['Play Count']}}</td>
+        <td>{{song.Genre}}</td>
+      </tr>
+    </tbody>
+  </table>
+</div>

dashboard/src/app/genre/genre.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { GenreComponent } from './genre.component';
+
+describe('GenreComponent', () => {
+  let component: GenreComponent;
+  let fixture: ComponentFixture<GenreComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ GenreComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(GenreComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should be created', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashboard/src/app/genre/genre.component.ts

@@ -0,0 +1,47 @@
+import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute, Params } from '@angular/router';
+
+import { ElsService } from '../els.service';
+
+import { Song } from '../object/song';
+
+@Component({
+  selector: 'app-genre',
+  templateUrl: './genre.component.html',
+  styleUrls: ['./genre.component.css']
+})
+export class GenreComponent implements OnInit {
+  genreName = '';
+  songs: Array<Song> = [];
+
+  constructor(
+    private elsService: ElsService,
+    private route: ActivatedRoute
+  ) { }
+
+  ngOnInit() {
+    this.route.params
+      .subscribe((params: Params) => this.genreName = params['name']);
+
+    this.loadSongs();
+  }
+
+  loadSongs(): any {
+    this.elsService.getGenreSongs(this.genreName, this.songs.length).subscribe(
+      data => {
+        // this.moreDataAvailable = data.length === ElsService.DEFAULT_SIZE;
+
+        // Erase song array with result for first load, then add elements one by one
+        // instead use concat => concat will sort table at each load, very consuming! and not user friendly
+        if (this.songs.length === 0) {
+          this.songs = data;
+        } else {
+          data.forEach(song => {
+            this.songs.push(song);
+          });
+        }
+      }
+    );
+  }
+
+}